Which one of the following is not isoelectronic with \[{{O}^{2-}}\] [CBSE PMT 1994]

Which one of the following is not isoelectronic with \[{{O}^{2-}}\] [C

1.	Which one of the following is not isoelectronic with \[{{O}^{2-}}\] [CBSE PMT 1994]
A.	\[{{N}^{3-}}\]
B.	\[{{F}^{-}}\]
C.	\[T{{l}^{+}}\]
D.	\[N{{a}^{+}}\]
Answer» D. \[N{{a}^{+}}\]

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Which one of the following is not isoelectronic with \[{{O}^{2-}}\] [CBSE PMT 1994]

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